Gas-regulator.



0. W. LUTZ.

GAS REGULATOR.

APPLIOLTIQH rmm run. 14 1908.

Patented Dec. 15,1908.

INVENTOR Wl TNESSES at gas supply pipe and OlTlG W. LUTZ, OF PETALUMA, CALIFORNIA;

GAEW El GULATQR.

Specification of Letters Patent.

Patented Dec. 15, 1908.

Application filed February is, 1908. Serial No. $216,901.

To all whom it may concern." I

Be it known that I, Urn W. Lure, c cititen of the United States, residing; et Petalunia, in the county of Sonoms and. State of California, have invented new and useful improvements in Gasdlogulato s, of which the following is a snecification.

My invention re ates to gas and heat regulators and controllers, and perteins especially to i thermostatic arrangement for regulating the heat for incubators and the lilio.

llcretofore there hus hee'n g cat diilioulty wrong; manufacturers and users of incuhatn to obtain or devise an apparatus for ac curately and satisfactorily regulating the host. With large machines it has been very diilicult to get an arrangement by V/l'llCll the heat could. be equally controlled, and which will set uniformly under all conditions. 'With these large incubators there has been considerable annoyance and financial loss by reason of the temperature controlling; device being easily dies-Hanged, sometimes resulh ing in letting in too much heat or cutting off the heat to such an extent as to he destructive of life to the chicks or undergoing incubation. 5

The present invention has for its ohject the overcoming of these defects, and the assembling into n simple, compact organism all the parts necessary to make up a simple, rscticsl gas controller for machines of any liind, and which assemblage of devices can be easilyshipped and set up as a single bit of mechanism, with a minimum amount of skill required on the art of the operator in putting the controlling device in the incubator.

- The invention consists of the ports and the construction end combination of ports as herei nutter more fully described and claimed, having reference to the accompanying; draw ings, in which-- Figure l is e side elevation showing the ap plication of mydnvention. Fig. 2 is an end view of the regulator. Fig. 3 is a section of the valve.

A represents the egg chamber, or any chamber wherein it is desired to maintain a uniform tem 'iei'ature.

2 is a metal or other late adapted to be secured to the under sic of the incubator, s n-l which n to c ries all the essential ports of the neat regulating apparati the under side of this plate 2 ii; snitch npo l, s connectthese two here l. 1;; shown the form of a tapered plug valve assing,

through its casing end secured in p one by the nut 7. As it is essential in an automatic regulator of the character herein described,

that this valve he very sensitive and always free to turn, I arrange a set screw 8 suitably threaded in the bracket 9 and adapted to bear against the nut 7 on the smaller end of the valve 6. By suitably adjusting the screw 8 the valve is prevented from seating too tight.

Preferably the casing of valve 6 has a by pass 10 controlled by screw or other means 11. The object of the lay-pass is always to allow Slifl'lClGIllL gas to pass to the burner to preventthe some being extinguished, if for any reason the vslve 6 should close completely. lit is understood that the gas to the burner (which latter is not shown) passes from any suitablmsource of supply through the ipe 3 and valve 6 to the ipe 4 The valve 6 has a cou-nterweightecl arm 12 to which is connected a lever member 13,,

fulcruined at to s steni'lard 15 which is fixed rigid. to plate 2.

The opposite end of the lever member 18 is threaded and carrie an adjustsble counterweight 16, and this counterweight coscts with the counterweight 12 on arm 12 to tend normally to open the valve 6. The opening" movement of the valve 6 may be controlled by a nut 17, which is threaded on a stud 18 fixed also to the pl ate this nut being elongated and arranged in the path of the lever H10l'l'lb8I'13. Thus by screwing up on the nut, the ere of move-- ment of the lever member 13 and arm 12 is increased correspondingly, by screwing down the nut the nu wemei'itol the v nlve is curtailed.

The lever member 13 has an enlarged pen tion, adjacent to its fulcrum, in which is threaded the adj '--'ting screw 19, which latter has its upper en recessed to form a seat for the needle point ol the actuating rod 20. Tlii rod .20 is u led in. a cc of pipe sec tion 14'] w d or other iso .ixcdly secured in the pi and orrtei'idine uon'ard therefrom. 'Tll up oi the hollow uide r supp rt ll prmx'ided with a stirrup or bracket 22 of suitable description, which carries an appropriate thermostat, as 28. This thermostat is so arranged with res ect to the rod 20 that as the heat in the ciainber A increases, the thermostat, in expanding, will act on the rod 20 at the appropriate time to rock the lever 13, and correspondingly. move the valve to reduce the flow of "gas to the ends of the pipe sections 34= to obviate-- twists and strains due ,to possible expansion and contraction of the parts.

By having all the essential arts of this apparatus fixed to and carried by the plate 2, there has been found to be no danger-Jot disarranging the parts, or affecting their sensitiveness' of operation, or otherwise interfering with the equitable heating arrangements, as has been the case, and is the case, in other regulating devices used for this purpose." 7

Having thus described my invention, what I claim and desire to secure by Letters Patent isp 1. In a gas regulating device, the combination of a plate, a gas-supplypipe and a gas-delivery pipe fixedly secured to the under side (if said plate, a regulating-valve in one of said pipes, a counterweighte'd-arm on the valve, a standard fixed to, the underside of said plate, a counterweighted-lever fulcruined to the standard and. arranged parallel with the plate, an adjustable-counterweight on one end of the lever, said lever operative on said arm, an adjustabl'e stop fixed to and depending from said plate for limiting the oscillating movement of the lever-member, and an adjusting-screw carried by the lever and adapted to form a seat for a companion )fllb. I 2. In a gas regulating device, the combination of a gas supply pipe section and a gas delivery pipe section connected thereto, a support for said sections, a regulatingivalve in one of the sections, said valve in the form of a tapered plug, a counterweighted' arm on the valve, a counterweighted lever member operative on said arm, an actuating rod operative on said lever member, and a unitary support for said pipe sections, said lever member and said actuating rod.

3. In a gas regulating device, the combination of a gas supply pipe section and agas delivery pipe section connected thereto, a support for said sections, a regulating valve in one of the sections said valve in the form of a ta cred plug, a eounterweightedarm on the va ve, a counterweighted lever-member operative on said arin, an actuating rod operative on said lever member, a. unitary support for said pipe sections, said lever member and said actuating rod, and an adjustable stop member carried by said support for limiting the oscillating movemerit of said lever member. 4

1n testimony whereof Ihave hereunto set my hand in presence of two subscribing Witnesses.

, OTTO W. LUTZ.

lNitnesses:

FRANK A. WARD, ALBERT C. DALE. 

